Probing composite Higgs boson substructure at the HL-LHC

Abstract

The Higgs boson may well be a composite scalar with a finite extension in space. Owing to the momentum dependence of its couplings the imprints of such a composite pseudo Goldstone Higgs may show up in the tails of various kinematic distributions at the LHC, distinguishing it from an elementary state. From the bottom up we construct the momentum dependent form factors to capture the interactions of the composite Higgs with the weak gauge bosons. We demonstrate their impact in the differential distributions of various kinematic parameters for the $pp\to Z^{\ast }H\to l^{+}{l}^{-}b\bar{b}$ channel. We show that this channel can provide an important handle to probe the Higgs' substructure at the HL-LHC.

arXiv comment18 pages, 7 captioned figures, Title changed, Conclusions unchanged, Matches published version

References in corpus (70)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• FastJet user manual
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• The Minimal Composite Higgs Model
• The Strongly-Interacting Light Higgs
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Higgs as a Holographic Pseudo-Goldstone Boson
• The Composite Nambu-Goldstone Higgs
• Observation of Higgs boson decay to bottom quarks
• Observation of $H\to b\bar{b}$ decays and $VH$ production with the ATLAS detector
• Updated Global SMEFT Fit to Higgs, Diboson and Electroweak Data
• Fermionic UV completions of Composite Higgs models
• A First Top Partner Hunter's Guide
• General Composite Higgs Models
• The Minimal Composite Higgs Model and Electroweak Precision Tests
• Complete Higgs Sector Constraints on Dimension-6 Operators
• UV descriptions of composite Higgs models without elementary scalars
• The Composite Higgs and Light Resonance Connection
• UV Completions of Partial Compositeness: The Case for a SU(4) Gauge Group
• Higgs At Last
• Vices and Virtues of Higgs EFTs at Large Energy
• Phenomenology of the Higgs Effective Lagrangian via FeynRules
• Probing Higgs couplings with high p_T Higgs production
• Pseudo-Goldstone Higgs Production via Gluon Fusion
• Probing the nature of the Higgs-like Boson via h -> VF decays
• Pushing Higgs Effective Theory to its Limits
• Search for heavy resonances decaying into a $W$ or $Z$ boson and a Higgs boson in final states with leptons and $b$-jets in 36 fb${}^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Taming the off-shell Higgs boson
• Direct and indirect signals of natural composite Higgs models
• Higgs characterisation via vector-boson fusion and associated production: NLO and parton-shower effects
• Composite Higgs Sketch
• Electroweak Higgs boson production in the standard model effective field theory beyond leading order in QCD
• Higher Order QCD predictions for Associated Higgs production with anomalous couplings to gauge bosons
• Gauge/gravity dynamics for composite Higgs models and the top mass
• Next-to-leading-order predictions for single vector-like quark production at the LHC
• Validity of SMEFT studies of VH and VV Production at NLO
• Single Vectorlike Quark Production at the LHC
• Gauge/gravity dual dynamics for the strongly coupled sector of composite Higgs models
• A UV complete partially composite-pNGB Higgs
• UV complete composite Higgs models
• Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
• Higgs form factors in Associated Production
• Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Vector and Axial-vector resonances in composite models of the Higgs boson
• Measurement of $VH$, $H\to b\bar{b}$ production as a function of the vector-boson transverse momentum in 13 TeV $pp$ collisions with the ATLAS detector
• Extending the Analysis of Electroweak Precision Constraints in Composite Higgs Models
• Resolving gluon fusion loops at current and future hadron colliders
• Higgs Couplings at High Scales
• A partially composite Goldstone Higgs
• Prospects of searching for composite resonances at the LHC and beyond
• Exploring T and S parameters in Vector Meson Dominance Models of Strong Electroweak Symmetry Breaking
• Signature of Pseudo Nambu-Goldstone Higgs boson in its Decay
• Composite spin-1 resonances at the LHC
• Constraining Composite Higgs Models using LHC data
• Broad composite resonances and their signals at the LHC
• The anomalous $Zb\bar{b}$ couplings: From LEP to LHC
• Off-shell Higgs Couplings in $H^{\ast }\to ZZ\to \ell \ell \nu \nu$
• The Quantum Critical Higgs
• New physics and signal-background interference in associated $pp\to HZ$ production
• Probing the electroweak symmetry breaking with Higgs production at the LHC
• Probing the Higgs boson through Yukawa force
• Impact of a colored vector resonance on the collider constraints for top-like top partner
• Beyond $M_{t\bar{t}}$: learning to search for a broad $t\bar{t}$ resonance at the LHC
• Implications of Vector Boson Scattering Unitarity in Composite Higgs Models
• Constraining New Physics with Single Top production at LHC
• Disentangling Strong Dynamics through Quantum Interferometry
• Convergent Bayesian Global Fits of 4D Composite Higgs Models

Cited by in corpus (7)

• Modelling vector-like quarks in partial compositeness framework
• Anomalous couplings in associated $VH$ production with Higgs decay to massive $b$ quarks at NNLO in QCD
• Diboson production in the SMEFT from gluon fusion
• Revisiting $\mathbf{Vh}(\to \mathbf{b}\bar{\mathbf{b}})$ at the LHC and FCC-hh
• Form Factors in Higgs Couplings from Physics Beyond the Standard Model
• Resolving Muon g-2 Anomaly With Partial Compositeness
• Phase transition and gravitational waves in maximally symmetric composite Higgs model